Merge master.kernel.org:/home/rmk/linux-2.6-serial

3 files changed, 64 insertions, 13 deletions

diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 87856d3cfb6..42ef9970bc8 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -116,12 +116,15 @@ hardware.
 	line becoming inactive or the tty layer indicating we want
 	to stop transmission due to an XOFF character.
 
+	The driver should stop transmitting characters as soon as
+	possible.
+
 	Locking: port->lock taken.
 	Interrupts: locally disabled.
 	This call must not sleep
 
   start_tx(port)
-	start transmitting characters.
+	Start transmitting characters.
 
 	Locking: port->lock taken.
 	Interrupts: locally disabled.
@@ -281,26 +284,31 @@ hardware.
 Other functions
 ---------------
 
-uart_update_timeout(port,cflag,quot)
+uart_update_timeout(port,cflag,baud)
 	Update the FIFO drain timeout, port->timeout, according to the
-	number of bits, parity, stop bits and quotient.
+	number of bits, parity, stop bits and baud rate.
 
 	Locking: caller is expected to take port->lock
 	Interrupts: n/a
 
-uart_get_baud_rate(port,termios)
+uart_get_baud_rate(port,termios,old,min,max)
 	Return the numeric baud rate for the specified termios, taking
 	account of the special 38400 baud "kludge".  The B0 baud rate
 	is mapped to 9600 baud.
 
+	If the baud rate is not within min..max, then if old is non-NULL,
+	the original baud rate will be tried.  If that exceeds the
+	min..max constraint, 9600 baud will be returned.  termios will
+	be updated to the baud rate in use.
+
+	Note: min..max must always allow 9600 baud to be selected.
+
 	Locking: caller dependent.
 	Interrupts: n/a
 
-uart_get_divisor(port,termios,oldtermios)
-	Return the divsor (baud_base / baud) for the selected baud rate
-	specified by termios.  If the baud rate is out of range, try
-	the original baud rate specified by oldtermios (if non-NULL).
-	If that fails, try 9600 baud.
+uart_get_divisor(port,baud)
+	Return the divsor (baud_base / baud) for the specified baud
+	rate, appropriately rounded.
 
 	If 38400 baud and custom divisor is selected, return the
 	custom divisor instead.
@@ -308,6 +316,46 @@ uart_get_divisor(port,termios,oldtermios)
 	Locking: caller dependent.
 	Interrupts: n/a
 
+uart_match_port(port1,port2)
+	This utility function can be used to determine whether two
+	uart_port structures describe the same port.
+
+	Locking: n/a
+	Interrupts: n/a
+
+uart_write_wakeup(port)
+	A driver is expected to call this function when the number of
+	characters in the transmit buffer have dropped below a threshold.
+
+	Locking: port->lock should be held.
+	Interrupts: n/a
+
+uart_register_driver(drv)
+	Register a uart driver with the core driver.  We in turn register
+	with the tty layer, and initialise the core driver per-port state.
+
+	drv->port should be NULL, and the per-port structures should be
+	registered using uart_add_one_port after this call has succeeded.
+
+	Locking: none
+	Interrupts: enabled
+
+uart_unregister_driver()
+	Remove all references to a driver from the core driver.  The low
+	level driver must have removed all its ports via the
+	uart_remove_one_port() if it registered them with uart_add_one_port().
+
+	Locking: none
+	Interrupts: enabled
+
+uart_suspend_port()
+
+uart_resume_port()
+
+uart_add_one_port()
+
+uart_remove_one_port()
+
 Other notes
 -----------
 
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 401d94a7fe2..0745ce78297 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1967,7 +1967,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
 		break;
 	}
 
-	printk(KERN_INFO "%s%d at %s (irq = %d) is a %s\n",
+	printk(KERN_INFO "%s%s%s%d at %s (irq = %d) is a %s\n",
+	       port->dev ? port->dev->bus_id : "",
+	       port->dev ? ": " : "",
 	       drv->dev_name, port->line, address, port->irq, uart_type(port));
 }
 
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 2b0401b93f2..9d257923068 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -39,8 +39,7 @@
 #define PORT_RSA	13
 #define PORT_NS16550A	14
 #define PORT_XSCALE	15
-#define PORT_IP3106	16
-#define PORT_MAX_8250	16	/* max port ID */
+#define PORT_MAX_8250	15	/* max port ID */
 
 /*
  * ARM specific type numbers.  These are not currently guaranteed
@@ -118,7 +117,9 @@
 #define PORT_M32R_SIO	68
 
 /*Digi jsm */
-#define PORT_JSM        65
+#define PORT_JSM        69
+
+#define PORT_IP3106	70
 
 #ifdef __KERNEL__